United States, Minnesota, Anoka, Helen Allison Savanna Scientific Natural Area. Anoka Co. Allison Savanna. Collected on N edge of old field that lies on the W side of the tract. T33N R 23W Sec. 2 N1/2 Anoka Co. Allison Savanna. Collected on N edge of old field that lies on the W side of the tract. T33N R 23W Sec. 2 N1/2 NE1/4.. 033N 23W 2
45.380475 -93.168729 +-592m.
Occurs in well drained sandy soil in full exposure to the sun, assoc. with Agropyron repens, Poa Pratensis, Carex houghtonii. Note fire scar[e]s on basal sheaths from a prescribed burn in spring 1974